I have html:
<button onclick="clicklistener()" id="form-button" type="button" class="btn btn-primary">click</button>
js:
<script> const clicklistener = () => { console.log('clicklistener()') fetch("/address") .then(response => { console.log(response) }) .catch(e => { console.log(e) }) } </script>
go:
func Handler(writer http.ResponseWriter, request *http.Request) { response := jsonResponse{IsAvailable: true, Message: "Available"} responseInJsonFormat, err := json.MarshalIndent(response, "", " ") if err != nil { log.Println("cannot convert response data to JSON") return } writer.Header().Set("Content-Type", "application/json") _, err = writer.Write(responseInJsonFormat) if err != nil { log.Println("cannot convert response data to JSON") } }
If I use the browser, I receive a response in json format with the data {isavailable: true, message: "available"}.
everything is normal.
But for some reason I can't get these data in js. The response I get in js is:
No header or data.
How can I get it?
Thanks!
Correct answer
fetch returns a response
object which must then be parsed into a usable format such as json or text. Since you want json format, you need to do the following:
fetch('/address') .then(response => response.json()) .then(data => console.log(data)) .catch(e => console.log(e))
See "Using the fetch api" for more details.
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